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About the Role

Sierra is building a platform to help businesses create better customer experiences using AI. The role involves designing and delivering production-grade AI agents that are central to Sierra's growth and revenue. You will own the Agent Development Life Cycle (ADLC) from pilot to deployment and iteration, partnering with large enterprises and startups to solve pressing business challenges. Your work will directly influence the evolution of Sierra's core platform by surfacing unmet needs and prototyping new features.

Responsibilities

Design and deliver production-grade AI agents that are highly performant, reliable, and intuitive.
Drive the Agent Development Life Cycle (ADLC), including building, tuning, and evolving AI agents in production.
Partner with large enterprises and cutting-edge startups to understand business challenges and build transformative AI agents.
Shape the future of AI agent development and Sierra's product by surfacing unmet needs and prototyping new tools and features.
Design and build AI agents for telecommunications and media companies to manage subscription churn.
Develop and refine AI agents for complex customer interactions, such as troubleshooting and product recommendations.
Create generalizable AI agent frameworks for industry-specific use cases.
Facilitate design partnerships for new product initiatives, including new agent architectures and self-service capabilities.
Experiment with and integrate the latest voice models at scale for enterprise customers.

Requirements

Experience building and scaling end-to-end production systems.
Strong technical problem-solving skills, especially in fast-changing, ambiguous environments.
A builder and tinkerer’s mindset with high agency.
Comfort working directly with customers to understand their needs and solve real-world problems.
Excellent communication skills across technical and non-technical audiences.

Skills

AI/LLM systems in production
Founding engineer experience
Eval frameworks
Agent tooling
RAG pipelines
Prompt engineering
React
TypeScript
Go
Customer interfacing
Technical project leadership with external stakeholders

Location

San Francisco
Atlanta
New York
London
Paris
Madrid
Munich
Singapore
Japan
Sydney

Work Type

In-person
Full-time

Experience Level

Founding engineer

Benefits

Flexible (unlimited) paid time off
Medical, dental, and vision benefits for you and your family
Life insurance and disability benefits
Retirement plan dependent on country of employment
Parental leave
Fertility and family building benefits through Carrot
Lunch, snacks, and coffee
Discretionary benefit stipend
Free alphorn lessons
Equity plans

About the Company

Sierra is creating a platform to help businesses build better, more human customer experiences with AI.
The company is guided by values: Trust, Customer Obsession, Craftsmanship, Intensity, and Family.
Co-founders are Bret Taylor (Board Chair of OpenAI, formerly co-CEO of Salesforce, CTO of Facebook) and Clay Bavor (18 years at Google, led Google Labs, AR/VR effort, Project Starline, Google Lens, Google Workspace product and design teams).

Equal Opportunity

We encourage you to apply even if your experience doesn’t precisely match the job description.
We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.